WASHINGTON—President Trump plans to sign an executive order on Monday escalating his battle against Democratic-led states and cities that don’t fully cooperate with federal immigration authorities, a key barrier to the mass deportations he has promised.

Trump campaigned on the promise to defund sanctuary cities and the orders he he is expected to sign today come just around the 100 day mark of his administration.

President Donald Trump will sign a pair of executive orders the White House says will help law enforcement implement his sweeping deportation agenda by cracking down on places that restrict cooperation with immigration enforcement.